CodeSignal is a San Francisco-based skills platform that uses AI-driven simulations to assess technical and soft-skills talent and to train workers through Cosmo, its conversational AI tutor. Founded in 2015 as CodeFights and rebranded in 2018, it now powers technical hiring and upskilling at companies like Meta, Netflix, Zoom, Robinhood and Capital One.
Sophie Novati is the CEO and co-founder of Formation, an A16Z-backed engineering fellowship that helps underrepresented software engineers break into top-tier tech companies. A Carnegie Mellon computer science graduate who rose to staff engineer at Facebook and Nextdoor, she founded Formation in 2019 after recognizing that talented engineers from non-traditional backgrounds were being systematically excluded from elite tech roles. Formation pairs adaptive AI-driven learning with mentorship from senior engineers, and its graduates have landed roles at Meta, Google, Netflix, Amazon, and Dropbox, with an average first-year compensation increase of over $100,000. The company has raised $9 million in funding and Novati credits a 2am chess game with Mark Zuckerberg as one early spark for thinking about business models.